国产精品一区二区国产馆蜜桃_特黄特色大片免费播放器下载_色婷婷综合久久久久中文一区二区_男人J桶进男人屁股过程

MH3090T型(xing)低濃(nong)度(du)煙塵采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)管(guan)（22代）適(shi)用(yong)于固定(ding)(ding)污染源(yuan)廢氣中濃(nong)度(du)低于50mg/m3的(de)顆粒(li)(li)物的(de)測定(ding)(ding)。采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)管(guan)中由含有(you)濾(lv)膜的(de)采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)頭(tou)(tou)及采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)頭(tou)(tou)固定(ding)(ding)裝置代替(ti)濾(lv)筒(tong)及濾(lv)筒(tong)采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)管(guan)，濾(lv)膜采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)頭(tou)(tou)后(hou)端具有(you)加熱功能，保持濾(lv)膜在設(she)定(ding)(ding)的(de)溫度(du)下工作(zuo)，可以適(shi)應高(gao)濕、低塵等工況。一體式采(cai)樣(yang)(yang)(yang)(yang)(yang)(yang)頭(tou)(tou)，可將濾(lv)膜、前彎管(guan)和(he)濾(lv)膜托(tuo)架作(zuo)為一個整體進行(xing)稱(cheng)重(zhong)，Z大限度(du)減(jian)少了濾(lv)膜質量和(he)顆粒(li)(li)物損(sun)失的(de)可能。